CN103677921B - Method and system for enabling Android system to be compatible with wifi chip - Google Patents
Method and system for enabling Android system to be compatible with wifi chip Download PDFInfo
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- CN103677921B CN103677921B CN201310678162.6A CN201310678162A CN103677921B CN 103677921 B CN103677921 B CN 103677921B CN 201310678162 A CN201310678162 A CN 201310678162A CN 103677921 B CN103677921 B CN 103677921B
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Abstract
The invention discloses a method and system for enabling the Android system to be compatible with a wifi chip. The method for enabling the Android system to be compatible with the wifi chip comprises the steps that (A) the identification number of the wifi chip is read, and the read identification number of the wifi chip is stored in a system directory so that a system node can be formed; (B) a wifi is started, the identification number, in the system node, of the wifi chip is read by the system, a preset defined function of a chip driver corresponding to the identification number of the wifi chip is executed according to the identification number of the wifi chip, and then the chip driver corresponding to the identification number of the wifi chip is obtained; (C) the chip driver which is obtained is loaded. By the adoption of the method and system for enabling the Android system to be compatible with the wifi chip, dynamic loading of the wifi driver is achieved so that equipment can be compatible with wifi chips with different specifications and can be matched with various wifi chips under the condition that the code of the equipment is not changed, the research and development efficiency is improved, and maintenance of a software version is accelerated.
Description
Technical field
The present invention relates to communication technical field, more particularly, to a kind of method of android system compatibility wifi chip and be
System.
Background technology
With the development of electronic technology, the popularization of network, increasing equipment all possesses function of surfing the Net, particularly no
Line online is more and more widely used.Wireless network adopts 3G and wifi substantially at present.
The flow process of the wifi of android system loading at present is generally：Click on application interface and open wifi, interface application is adjusted
With setWifiEnabled (wifiEnabled) interface, send the order opening wifi, and issue CMD_LOAD_DRIVER
Call drive load function load driver.Now, load required driving by loading wifi layer interface.Said process be
Process in the wifi.c code of android hal layer and realize.Wifi_load_driver function can be executed in wifi.c first,
Obtain wifi chip content such as BoardConfigComm.mk currently to be loaded by reading a configuration file of wifi,
By the specific function inside configuration file, such as call wifi to drive and deposit path definition function, go to search current placement wifi
Activation point, such as/system/lib/modules/wlan.ko.And call wifi name definition function to confirm wifi core successively
The name of piece.And path definition function is deposited in wifi driving and wifi name definition function is all write in current Android system
In such as BoardConfigComm.mk in fixing configuration file, and a wifi can only be supported to drive it is impossible to dynamic become
Dynamic, thus leading to can not dynamically go to change load wifi driving.The wifi function of thus causing on android can only
For certain a wifi chip, if changing a chip, must be to system redesign.So allow for wifi chip more
Change extremely onerous, also increase the time of system development.
Therefore, prior art has yet to be improved and developed.
Content of the invention
A kind of in view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide android system compatibility wifi core
The method and system of piece are it is intended to solve the problems, such as the wifi chip of the current incompatible Multiple Type of system.
Technical scheme is as follows：
A kind of method of android system compatibility wifi chip, wherein, the method comprising the steps of：
A, the identification number of reading wifi chip, the identification number being read is saved in formation system node in system directory；
B, startup wifi, system reads the wifi chip identification number in described system node, is identified according to this wifi chip
The defined function of number corresponding chip drives of the default wifi chip identification number of execution, obtains corresponding to this wifi chip identification number
Chip drives；
The obtained chip drives of C, loading.
The method of described android system compatibility wifi chip, wherein, also includes before described step A：
In advance multiple chip drives are copied in system directory, setting chip drives are corresponding with wifi chip identification number
Defined function.
The method of described android system compatibility wifi chip, wherein, described step A is specially：
Read the identification number of wifi chip by host system interface, created under system directory using the identification number being read
System node, the wifi chip being read identification number is saved under this system directory.
The method of described android system compatibility wifi chip, wherein, passes through preset path using address defined function
Read the identification number of wifi chip, node creates function and creates system node, accessed wifi chip mark under system directory
Knowledge number is saved under this system directory.
The method of described android system compatibility wifi chip, wherein, described step B also includes：System reads described
While identification number in system node, also read title, the storing directory of chip drives of wifi chip.
The method of described android system compatibility wifi chip, wherein, described step B is specially：
Start wifi, system reads the wifi chip identification number in described system node, read the name of wifi chip simultaneously
Title, chip drives storing directory；
According to the defined function of the corresponding chip drives of the described wifi chip identification number of identification number execution being read, obtaining should
Chip drives corresponding to identification number；
Searched by described chip drives storing directory and obtain this chip drives.
Multiple chip drives wherein, described are copied to by the method for described android system compatibility wifi chip in advance
It is specially in system directory：In advance multiple chip drives are copied under system/lib/module/ catalogue.
The method of described android system compatibility wifi chip, wherein, the corresponding chip of described wifi chip identification number drives
Dynamic defined function is wifi_Drives function.
A kind of system realizing android system compatibility wifi chip method as above, wherein, described system bag
Include：
Wifi chip identification number read module, for reading the identification number of wifi chip；
System node forms module, for the identification number being read is saved in formation system node in system directory；
Chip drives acquisition module, for reading the identification number in described system node, and identifies according to this wifi chip
The defined function of number corresponding chip drives of the default wifi chip identification number of execution, obtains corresponding to this wifi chip identification number
Chip drives；
Drive load module, for loading obtained chip drives.
Beneficial effect：The present invention provides a kind of method and system of android system compatibility wifi chip, by the present invention
Method achieve the dynamic load of wifi driving such that it is able to the wifi chip of compatible different model, the equipment making is not changing
In the case of dynamic code, multiple wifi chip can be adapted to, improve efficiency of research and development, also accelerate the maintenance of software version simultaneously.
Brief description
Fig. 1 is the flow chart of the method preferred embodiment of android system compatibility wifi chip of the present invention.
Fig. 2 is that wifi chip ID of the present invention reads the flow chart with preserving preferred embodiment.
Fig. 3 is the flow chart of the wifi drive load preferred embodiment of the present invention.
Fig. 4 is the theory diagram of the preferred embodiment of android system compatibility wifi chip system of the present invention.
Specific embodiment
The present invention provides a kind of method and system of android system compatibility wifi chip, for making the purpose of the present invention, skill
Art scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that tool described herein
Body embodiment only in order to explain the present invention, is not intended to limit the present invention.
A kind of method of android system compatibility wifi chip as shown in Figure 1, wherein, methods described includes following step
Suddenly：
S100, the identification number of reading wifi chip, the identification number being read is saved in formation system section in system directory
Point.
Above-mentioned steps are specially：Read the identification number of wifi chip by host system interface, using the identification number being read
Create system node under system directory, the wifi chip being read identification number is saved under this system directory.
Every kind of wifi chip has oneself mark（ID）Number, this No. ID is unique for a kind of wifi chip of model.
For example through realtek wifi chip 8188cus of debugging（Wifi chip）For 0x8176（wifi ID）, 8188eus
（Wifi chip）For 0x8179（wifi ID）,8188ETV（Wifi chip）For 0x0179（wifi ID）.
When electricity in wifi chip, can go to read No. ID of wifi chip by the interface of main system.And this No. ID is protected
Store away, create a system node, for other desired routine call.
The method creating ID node is specially：Defined by address defined function, that is, define wifi_id_show function,
Wifi_id_show defines the address of the internal ID of wifi chip, and this address is to have defined when wifi chip manufacturer dispatches from the factory
Path.Wifi_id_show function obtains wifi chip ID by this path.After obtaining No. ID, function is created by node,
I.e. function strcmp (hdev->dev.kobj.parent->Name, " fsl-ehci.0 ") ＆＆ attr_flag is in system mesh
Record is lower to create node, and No. ID preservation of the wifi chip getting under this catalogue.
In preferred embodiment, also include before described step S100：
In advance multiple chip drives are copied in system directory, specifically the chip drives of multiple models are copied to
Under system/lib/module/ catalogue.The corresponding defined function of chip drives and wifi chip identification number is set.
In Android system, often a wifi chip be required for compiling a wifi driving file be placed on needs plus
In the middle of the file carrying.The wifi chip of Android system drives and is placed under system/lib/module/ catalogue at present.The present invention
Needed the wifi chip used driving to be all added in source code to compile out later, be put into system/lib/module/ catalogue
Below, so that follow-up use.For example by wifi chip 8188cus after debugging, the driving of 8188eus, 8188etv compiles out
Come, then copy to standby under system/lib/module/ catalogue.
S200, startup wifi, system reads the wifi chip identification number in described system node.According to this wifi chip mark
Know a number defined function for the corresponding chip drives of the default wifi chip identification number of execution, obtain corresponding to this wifi chip identification number
Chip drives.
In specific embodiment, while system reads the identification number in described system node, also read the name of wifi chip
Title, the storing directory of chip drives.
Above-mentioned steps are specially：
Receive user instruction starts wifi, and system reads the wifi chip identification number in described system node, reads simultaneously
The title of wifi chip, chip drives storing directory；
According to the function definition of the corresponding chip drives of the described wifi chip identification number of identification number execution being read, obtaining should
Chip drives corresponding to identification number；
Searched by described chip drives storing directory and obtain this chip drives.
When current Android system wifi opens, need to drive path definition letter by wifi in wifi.c file
Number WIFI_DRIVER_MODULE_PATH and wifi name definition function WIFI_DRIVER_MODULE_NAME goes to select to add
Carry the name of wifi chip and the catalogue depositing driving, this two functions all have wifi configuration file
In the middle of BoardConfigComm.mk.And the present invention drives to realize wifi dynamic load, need
In BoardConfigComm.mk, this two are removed, be put in wifi.c and do dynamic process.For this reason, the present invention in wifi plus
In the middle of the flow process carrying, go to change original wifi loading flow process in wifi.c.Call wifi_load_ in wifi.c code
During driver, the present invention increases an action reading No. wifiID,
#defineKernel_Sys_Path"/sys/devices/platform/fsl-ehci.0/usb_product_
id"
Define the address of wifi chip ID,
char* wifi_path;
char* wifi_name;
The storing directory that wifi drives is read in definition, and the name of wifi
By above-mentioned two steps it is possible to obtain wifi chip ID, the driving catalogue of wifi, and the name of wifi.
Obtain the corresponding wifi of wifi chip ID by Wifi_Drivers function to drive,
Wifi_Drivers[]={
{"/system/lib/modules/8192cu.ko", "8192cu", 0x8176},
{"/system/lib/modules/8188eu.ko", "8188eu", 0x8179},
As defined it is assumed that ID is as 0x8176 with superior function, the corresponding wifi loading is driven to 8192cu, and catalogue is/
System/lib/modules/8192cu.ko, when No. ID is 0x8179, the corresponding wifi loading is driven to 8188eu, catalogue
For/system/lib/modules/8192cu.ko.The definition of this function is one-to-one, if also having more driving to need
Want compatibility it is only necessary to add one by one below superincumbent wifi_Drives function.
The obtained chip drives of S300, loading.
The method of the android system compatibility wifi chip of the present invention can be specifically addressed by Fig. 2 and Fig. 3, such as Fig. 2
Shown, the reading of wifi ID and preservation comprise the following steps that：
Electricity on S1, machine.
The upper electricity of S2, wifi.
S3, by wifi_id_show read wifi ID.Wifi_id_show defines the ground of the internal ID of wifi chip
Location, obtains wifi chip ID by wifi_id_show function according to defining path.
S4, pass through strcmp (hdev->dev.kobj.parent->name, "fsl-ehci.0") && attr_flag
Create system node, keep wifi ID information.By function strcmp (hdev->dev.kobj.parent->name, "
Fsl-ehci.0 ") attr_flag creates node under system directory, No. wifiID preservation getting in this catalogue
Under.
Intelligence loads wifi and drives as shown in figure 3, step is as follows：
H1, call WifiNative.loadDriver () start drive load.Call WifiNative.loadDriver
() load driver.It is to process to realize in the wifi.c code of android hal layer.
H2, call wifi_load_driver read wifi ID.Wifi_load_ can be executed first in wifi.c
Driver function, executes No. ID reading of wifi by this function.
H3, No. ID reading on node, obtain wifi ID.What the title of acquisition wifi, wifi drove simultaneously deposits mesh
Record.
H4, pass through No. ID, to load respectively needs wifi drive.
As shown in Fig. 4 realize android system compatibility wifi chip method as above in preferred embodiment
System, wherein, described system includes：
Wifi chip identification number read module 100, for reading the identification number of wifi chip.
System node forms module 200, for the identification number being read is saved in formation system node in system directory,
Specifically as described in step S100.
Chip drives acquisition module 300, for reading the identification number in described system node, and according to this wifi chip mark
Know a number defined function for the corresponding chip drives of the default wifi chip identification number of execution, obtain corresponding to this wifi chip identification number
Chip drives, specifically as described in step S200.
Drive load module 400, for loading obtained chip drives.
The present invention provides a kind of method and system of android system compatibility wifi chip, real by the method for the present invention
Show the dynamic load of wifi driving such that it is able to the wifi chip of compatible different model, the equipment making is not changing code
In the case of, multiple wifi chip can be adapted to, improve efficiency of research and development, also accelerate the maintenance of software version simultaneously.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved according to the above description or to convert, all these modifications and variations all should belong to the guarantor of claims of the present invention
Shield scope.
Claims (7)
1. a kind of method of android system compatibility wifi chip is it is characterised in that the method comprising the steps of：
A, the identification number of reading wifi chip, the identification number being read is saved in formation system node in system directory；
B, startup wifi, system reads the wifi chip identification number in described system node, is held according to this wifi chip identification number
The defined function of the corresponding chip drives of the default wifi chip identification number of row, obtains this chip corresponding to wifi chip identification number
Drive；
The obtained chip drives of C, loading；
Described step B is specially：
Start wifi, system reads the wifi chip identification number in described system node, read title, the core of wifi chip simultaneously
Piece drives storing directory；
According to the defined function of the corresponding chip drives of the described wifi chip identification number of identification number execution being read, obtain this mark
Chip drives corresponding to number；
Searched by described chip drives storing directory and obtain this chip drives.
2. android system according to claim 1 compatibility wifi chip method it is characterised in that described step A it
Front also include：
In advance multiple chip drives are copied in system directory, the definition corresponding with wifi chip identification number of setting chip drives
Function.
3. the method for android system compatibility wifi chip according to claim 1 is it is characterised in that described step A has
Body is：
Read the identification number of wifi chip by host system interface, create system under system directory using the identification number being read
Node, the wifi chip being read identification number is saved under this system directory.
4. the method for android system compatibility wifi chip according to claim 1 is it is characterised in that determined using address
Adopted function reads the identification number of wifi chip by preset path, and node creates function and creates system node under system directory,
Accessed wifi chip identification number is saved under this system directory.
5. the method for android system compatibility wifi chip according to claim 2 will be it is characterised in that described in advance will
Multiple chip drives copy in system directory and are specially：In advance multiple chip drives are copied to system/lib/module/
Under catalogue.
6. the method for android system according to claim 1 compatibility wifi chip is it is characterised in that described wifi core
The defined function of the corresponding chip drives of piece identification number is wifi_Drives function.
7. a kind of system of the android system compatibility wifi chip method realized as described in any one of claim 1-6, it is special
Levy and be, described system includes：
Wifi chip identification number read module, for reading the identification number of wifi chip；
System node forms module, for the identification number being read is saved in formation system node in system directory；
Chip drives acquisition module, for reading the identification number in described system node, and holds according to this wifi chip identification number
The defined function of the corresponding chip drives of the default wifi chip identification number of row, obtains this chip corresponding to wifi chip identification number
Drive；
Drive load module, for loading obtained chip drives；
Described chip drives acquisition module is specially：
Start wifi, system reads the wifi chip identification number in described system node, read title, the core of wifi chip simultaneously
Piece drives storing directory；
According to the defined function of the corresponding chip drives of the described wifi chip identification number of identification number execution being read, obtain this mark
Chip drives corresponding to number；
Searched by described chip drives storing directory and obtain this chip drives.
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| CN201310678162.6A CN103677921B (en) | 2013-12-13 | 2013-12-13 | Method and system for enabling Android system to be compatible with wifi chip |
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| CN201310678162.6A CN103677921B (en) | 2013-12-13 | 2013-12-13 | Method and system for enabling Android system to be compatible with wifi chip |
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| CN103677921B true CN103677921B (en) | 2017-02-15 |
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| CN103905852B (en) * | 2014-04-17 | 2017-11-10 | 珠海迈科智能科技股份有限公司 | A kind of chip module adaption system and method |
| CN103942078B (en) * | 2014-04-30 | 2017-11-17 | 华为技术有限公司 | The method and embedded device of a kind of load driver program |
| CN104268086A (en) * | 2014-09-05 | 2015-01-07 | 南车株洲电力机车研究所有限公司 | Chip identification method and chip compatibility method |
| CN105554257A (en) * | 2015-12-11 | 2016-05-04 | 惠州Tcl移动通信有限公司 | Compass fast initialization setting method, system and mobile terminal |
| CN106027542A (en) * | 2016-06-21 | 2016-10-12 | 杭州古北电子科技有限公司 | Method for enabling WiFi module to adapt to communication protocols of different manufacturer apparatuses |
| CN106452847B (en) * | 2016-09-21 | 2019-09-17 | 广州视源电子科技股份有限公司 | Intelligent identification method and device for WIFI equipment |
| CN106817742B (en) * | 2016-12-30 | 2020-07-24 | 南京中科创达软件科技有限公司 | Method for realizing wireless WiFi dual-working mode on Android |
| CN108446138A (en) * | 2017-02-13 | 2018-08-24 | 中兴通讯股份有限公司 | A kind of drive load method and device |
| CN107766263B (en) * | 2017-10-12 | 2020-11-06 | 硅谷数模半导体（北京）有限公司 | Control method and device of interface chip, storage medium and processor |
| CN112965465B (en) | 2018-01-19 | 2022-07-08 | 深圳市道通科技股份有限公司 | Automobile diagnostic instrument, operation system method thereof and automobile diagnostic system |
| CN109975688A (en) * | 2019-03-25 | 2019-07-05 | 北京百度网讯科技有限公司 | General evaluating method and device for heterogeneous chip |
| CN110704111A (en) * | 2019-08-27 | 2020-01-17 | 深圳市有方科技股份有限公司 | WIFI drive loading method and system |
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